<template>
  <view class="goods-detail" v-if="goods_info.goods_name">
    <!-- 轮播图 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular>
      <swiper-item v-for="(item,index) in goods_info.pics" :key="index">
        <image :src="item.pics_big" @click="preview(index)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <view class="goods-price">¥{{goods_info.goods_price}}</view>
      <view class="goods-info-body">
        <view class="goods-name">
          {{goods_info.goods_name}}
        </view>
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">
        快递:免运费
      </view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    
    <!-- 底部nav -->
    <view class="goods-nav">
    <uni-goods-nav 
      :fill="true" 
      :options="options" 
      :button-group="buttonGroup" 
      @click="onClick"
      @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import {mapMutations,mapGetters} from 'vuex'
  
  export default {
    name:'GoodsDetail',
    data() {
      return {
        // 商品详情对象
        goods_info: {},
        options: [
          {
            icon: 'shop',
            text: '店铺',
            infoBackgroundColor:'#007aff',
            infoColor:"red"
          }, 
          {
            icon: 'cart',
            text: '购物车',
            info: 0
          },
        ],
        buttonGroup: [
          {
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ]
        	  
      };
    },
    computed:{
      ...mapGetters('cart',['total'])
    },
    watch:{
      total:{
        handler(newVal){
          const findResult=this.options.find(item=>item.text==='购物车')
          if(findResult){
            findResult.info=newVal
          }
        },
        immediate:true
      }
    },
    onLoad(options) {
      const goods_id=options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods:{
      ...mapMutations('cart',['addToCart']),
      async getGoodsDetail(goods_id){
        const {data:res}=await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status!==200)return uni.$showMsg()
        res.message.goods_introduce=res.message.goods_introduce.replace(/<img/g,'<img style="display:block;"').replace(/webp/g,'jpg')
        this.goods_info=res.message
      },
      preview(index){
        uni.previewImage({
          current:index,
          urls:this.goods_info.pics.map(x=>x.pics_big),
          
        })
      },
      onClick (e) {
      	if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick (e) {
       if(e.content.text==='加入购物车'){
         //{goods_id,goods_name,goods_price,goods_count,goods_small_logo,goods_state}
         const goods={
           goods_id:this.goods_info.goods_id,
           goods_name:this.goods_info.goods_name,
           goods_price:this.goods_info.goods_price,
           goods_count:1,
           goods_small_logo:this.goods_info.goods_small_logo,
           goods_state:true
         }
         this.addToCart(goods)
       }
       
      }
    }
  }
</script>

<style lang="scss">
  .goods-detail{
    padding-bottom: 50px;
  }
  swiper{
    height: 750rpx;
    image{
      width: 100%;
      height: 100%;
    }
  }
  .goods-info-box{
    padding: 10px;
    padding-right: 0;
    .goods-price{
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .goods-name{
        font-size: 13px;
        margin-right: 10px;
      }
      .favi{
        width: 100px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }
    .yf{
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }
  .goods-nav{
    position: fixed;
    bottom:0;
    left:0;
    width:100%;
  }
  
</style>
